Installation Manual

7
oPerating inStructionS for bulk liquid SyStemS
“Push – Pull” Procedure
The push – pull method removes bulk liquid from a system using the pressure differential created by the unit.
This method works only with large systems where the liquid is readily accessible; it may not work on systems
that contain less than 15 lbs. (6.8 kg) bulk liquid.
This method is used :
• on systems with receiver cylinders.
• on systems containing more than 20 lbs. (9.1 kg) of refrigerant.
• when transferring bulk liquid refrigerant from one cylinder to another.
Liquid Recovery
Outlet Fitting
Vapor
Inlet
Fitting
Liquid
System Being
Serviced
Sight
Glass
Liquid
Scale
WARNING : Manually close the valves on both the
storage cylinder and the unit to prevent overfilling the
cylinder. Once the siphon is started, it can overfill the
storage cylinder, even if the cylinder is equipped with a
float level sensor. The siphon can continue even when
the unit is turned off.
Filter/Drier
Recovery
Cylinder
Vapor
1. Place the unit on a at, level surface.
2. Connect a hose from the outlet tting of the unit
to the vapor port on the system being serviced.
3. Connect a hose from the inlet tting of the
unit to the vapor port of a recovery cylinder.
Robinair recommends using a lter / drier in
this line.
4. Connect a hose from the liquid side of the
recovery cylinder to the liquid port of the
system being serviced. Robinair recommends
using a sight glass in this line as a method of
determining when the liquid has been removed.
RG6 with SK-5001 kit installed: Attach tank
connection harness (No. 549977) to oat
switch connection on the recovery cylinder.
5. Place the recovery cylinder on a scale (such as
TIF9010A) to avoid overlling the cylinder.
6. Verify inlet and outlet valves on unit are closed.
7. Turn the recover / purge knob to RECOVER.
8. Open the recovery cylinder valves.
9. Open the outlet valve on the unit.
10. Toggle the power switch ON.
11. SLOWLY open the inlet valve on the unit.
12. When the weight reading on the scale stops
increasing, close the inlet valve on the unit
rst; then close the liquid valve on the recovery
cylinder.
13. Toggle the power switch OFF.
14. Close the valves on the recovery cylinder, and
close the outlet valve on the unit.
15. Proceed to Vapor Recovery.
Float Switch
Connection
(RG6 w/ SK-5001
kit installed)